Jason B Grosky

Jason B Grosky

5.0
Rating: 7.2

Licensed for 19 years

Criminal defense Lawyer at Haverhill, MA
Practice Areas: Criminal Defense, DUI & DWI, Speeding & Traffic Ticket ... +5 more

105 Kenoza Ave, Haverhill, MA

About Jason

Biography

Fees and Rates

Cost

Free Consultation

$0 first 30 minutes


Payment Methods

  • Cash
  • Check
  • Credit Card

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Licenses

Licensed in New Hampshire for 16 years

State: New Hampshire

Acquired: 2009

Active

No misconduct found

Licensed in Massachusetts for 19 years

State: Massachusetts

Acquired: 2006

Active

No misconduct found

Location

Grosky Law Firm

105 Kenoza Ave, Haverhill, MA, 01830

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Jason B Grosky's Reviews

Avvo Review Score

5.0 /5.0

31 Client Reviews

Filter Avvo Reviews (31) Refine reviews to match your needs. Use the filters to quickly surface reviews that align with your case or priorities.

Showing 6 - 10 of 23 reviews | Case Results

Posted by RD | March 20, 2026 | Hired Attorney

Best in the business

If you need a defense attorney, call Jason Grosky! He went above and beyond and facilitated everything for me. He knows the process and the system and is on your side from day one. I was more than happy with the outcome and I would call him again if need be.

Posted by Michael | January 19, 2026 | Hired Attorney

Extremely professional

I cannot recommend this defense attorney highly enough. From the very beginning, Attorney Grosky handled an extremely sensitive case that involved family with professionalism, compassion, and discretion. Communication was outstanding — every step of the process was clearly explained, questions were a...nswered promptly, and I always felt informed and supported. Most importantly, he worked tirelessly to achieve the best possible outcome, and the results exceeded my expectations. Having an attorney who truly listens, cares, and advocates fiercely makes all the difference, and that is exactly what I experienced here. I am deeply grateful for his dedication and expertise. Thank you,

Posted by John | January 12, 2026 | Hired Attorney

Highly professional and results-oriented

Jason was professional and extremely effective in helping me in my case involving harassment. He took the time to visit me at my home, understand my circumstances and stay on top of the case through some twists and turns. He knows the law, he knows the courts and he will work closely with you to get ...to the result you’re seeking. If you need assistance in a criminal or motor vehicle matter, or an order of protection, I highly recommend Jason Grosky.

Posted by anonymous | January 12, 2026 | Hired Attorney

successful resolution out of court through diversion program

my daughter was caught using a fake id to purchase a bottle of wine in new hampshire. we hired jason to help us resolve this matter. jason was super responsive and provided excellent service every step of the way to successfully resolve this matter out of court (through nh's diversion program). if yo...u need to resolve a similar matter, i highly recommend working with jason.

Posted by Alfred | December 29, 2025 | Hired Attorney

Very committed and skilled attorney

Mr.Grosky represented me in a case in which I was looking at significant time. He did this pro bono. He was extremely professional in every way. When we first met to go over the case he was very thorough in collecting all my info. He did not rush at all and gave me the definite sense that he really c...ared. At my ball hearing he spoke atleast twice as long as the da and really put forth a great case for my release. After that he arranged a very very good plea deal for me which allowed my release from jail much sooner than expected. Even after his job was done he sent me an email offering his advice for what I should and shouldn't do once out. This was not necessary but he did it because he really cares. Mr. Grosky is a phenomenal lawyer that I cannot speak highly enough of.

See All Client Reviews

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Experience

Rating:  7.2 (Very Good)

Work Experience

2025 - Present

Principal, Grosky Law Firm

2009 - 2025

Prosecuting Attorney, Salem (NH) Police Department

2007 - 2009

Assistant District Attorney, Essex County District Attorneys Office

Education

2006

Massachusetts School of Law at Andover

JD - Juris Doctorate

Avvo Rating

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Avvo Rating Levels
10.0 - 9.0 Superb8.9 - 8.0 Excellent7.9 - 7.0 Very Good6.9 - 6.0 Good5.9 - 5.0 Average4.9 - 4.0 Concern3.9 - 3.0 Caution2.9 - 2.0 Strong Caution1.9 - 1.0 Extreme Caution